Car-ventilator



A. STEGER.

CAR VENTILATOR. APPLICATION FILEDIJUNE'H, 1917.

1,389,788 PatentedSept. 6,1921.

3 SHEETS-SHEET 1- A. STEGER.

CAR VENTILATOR.

APPLICATION FILED mm; 14, 1917.

1,389,788. PatentedSept. 6,1921. 3 SHEETS-SHEET 2.

A. STEGER.

CAR VENTILATQR.

APPLICATION FILED um 14, 1911.

Patenfbd Sept. 6, 1921.

3 SHEETS-SHEIET 3.

UNITED sures PATENT orator-z.

AUGUST BEHPGEB, OI CHICAGO. W018, ASSIGNOB 0] ONE-FOURTH '10 GEORGE A.

GAB-VIN'IILATOR- specification of Letters Patent.

Patented Sept. 6, 1921.

Applicationlled June 14, 1917. Serial Ito. 174,748.

To all whom it may concern:

Be it known that I, AUGUST Smear, a citizen of the United States, residin at Chicago, in the county of Cook and tate of Ill1nois, have invented certam new and useful Improvements in Car-Ventllators, of which the following is a specification.

This invention relates to a ventilator for railway cars and has for its object the provision of means insuring. an adequate flow of air from the car under all conditions, preventing the entrance of cinders, snow and water through the ventilator opemng and permittin the proper control of the flow of air wit out diminishing the efliciency of the ventilator.

A further object of my invention is the provision of a screened ventilator from which the screen may be readily detached for repair or replacement without dismantling the ventilator or removin it from the car.

Further objects an advantages of my invention will be apparent as it is better understood by reference to the following specification when read in connection wlth the accompanying drawing, illustrating the preferred embodiments thereof, in which- Figure 1 is a plan view of the ventilator applied to the roof of a turtle-back car;

Fig. 2 is a section on the line 2-2 of Fi l;

ig. 3 is a section on the line 3-3 of,

Fig. 2; p P ig. 4 is a section on the hue 4-4 of ig. 5 is a detail in perspective of a double screen;

Fig. 6 is a detail in perspective of a single screen;

Fig. 7 is a transverse section through a sli htly different form of ventilator adapted to he applied to the center of a turtle-back roof Fig. 8 is a plan view partially in section of a ventilator constructed in accordance with myinvention for use with a monitor deck car, and

Fig. 9 is a section on the line 9-9 of Fig. 8.

Referring to the drawing, 5 indicates generally the roof of a turtle-back car having an opening 6 therein. Secured to the roof above the opening 6 is a shell preferably constructed of sheet metal and having top and bottom walls 7 and 8, respectivel a rear end wall 9 and a front wall 10. idev screen cloth 17 walls 11 are supported between the top and bottom walls 7 and 8 and converge from the rear portion of the shell forming an air passage leading to an outlet.

A screen 12 is supported in the oulet, its upper edge being dlsposed behind an angle member 13 secured to the top wall 7 and in front of angle members 14 secured to the lateral walls 11. Latches 15 are pivotally mounted on brackets 16 adjacent the bottom wall 8 and when disposed in the position indicated in Fig. I retain the screen in operative position.

The screen may comprise a single sheet of ound as indicated in Fig. 6. Preferably, however, the screen comprises two sheets 18 of screen cloth spaced from each other by bending the edges of one sheet at right angles thereto and binding it with the edges of the other sheet as indicated in Fig. 5. In either event the lower edge of the binding is provided with a plurality of notches 19, which when'the screen is in operative position, are adjacent the bottom wall 8. The bottom wall 8 is inclined downwardl toward the screen and consequently an cinders which may pass the screen will all thereon and descend by gravity to the lower edge of the screen and thence through the notches 19 which permit them to escape.

The inner end of the bottom wall 8 is provided with an upstanding flange'20 which effectively prevents either cinders, snow or water from passing into the opening in the roof of the car. A door 21 is hingedly mounted at 22' on the rear wall 9 and cooperates with the flange 20 to close the air passage. A brace 22' connects the rear wall 9 with the flange 2 0 and alever 23 is pivotally mounted at 24 thereon and is connected biy a link 25 to a bracket 26 on the door 21.

he pivotal point of the lever 23 is so related to the pivotal connection of the link 25 with the bracket 26 that when the door 21 is fully raised the pivotal connection oi: the link 25 with the lever 23 will have passed the line connecting the pivot 24 and the bracket 26 so that the door 21 is locked in open position.

A grid 27 is secured to the ceiling of the car over the opening leadin to the air passage and is referably of light but rigid construction. eavy wire mesh fabric with a suitable binding at its edges is best adapted for this purpose for the reason that it preserves the maximum capacity of the air assa A slot 28 is provided in the gri 27 through which the end of the lever 23 projects. Thus the door 21 may be operated at will to open or close the air passage.

Between the top and bottom walls? and 8 adjacent to and at either side of the outlet 1 provide a plurality of bafies 29 which, together with the front wall 10, deflect any air currents from the outlet and thus prevent back pressure in the air passage. Upon examination it will be found that no direct line may be drawn from the point at which any air may enter between the top and bottom walls 7 and 8 which will extend into the outlet. This construction assures proper movement of the air through the air passage to the outlet under all conditions andalso serves to decrease if not prevent the entrance of cinders, snow and water into the air passage.

for use in monitor-deck cars.

" ture shown in Fig. 7 is in fact two ventila tors placed back to back.

In Figs. 8 and 9 of the drawing 1 have illustrated a form or" my invention adapted Referring to the drawing, 35 indicates the roof of the car in the central portion of which the monitor 36 is arranged. A transom 37 is provided to permit the escape or air from the car. My invention as applied to this type or car is substantially identical in every respect with the form hereinheiore described except that the transom 37 serves the purpose of the door 21 and the shell 38 is slightly modified so that it may be fastened to the monitor 36 as indicated in the drawing. A

screen 39 is provided and held in operative position by latches 40 so that it may be readily removed for repair or replacement. The bottom wall 41 of the air passage slopes downwardly toward the outlet in which the screen 39 is disposed so that cinder-s which pass the screen may escapel Baihes 42 are provided at either side of and in front of the outlet to deflect air currents therefrom.

From the 0 ing it will be readil understood that I ave perfected a ventilator for cars presentin numerous advantageous features and capa is of accomplishing results which are impossible with the types of ventilators now in use. lt will beappsrent, moreover, that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope or the invention or sacrificing any of the material advantages thereof,

the forms hereinbefore described being merely preferred embodiments thereof.

claim:

1. A car ventilator comprising a shell having top and bottom walls, side walls converging from the outer edges of said top and bottom walls to provide a centrally disposed outlet, a screen across said outlet, hafies located at the sides of said outlet, and bafles located in front of said first mentioned baffies and projecting angularly in front oisaid outlet.

2. A car ventilator comprising a shell having a top, front and back walls, a bottom wall having an opening therein, side walls converging from the outer edges of the top and bottom walls and inclosing the front portion of said opening to form a central outlet located back of the front wall, a hafile at each side oi said opening, and hafies located between the front and said first mentioned her" fies and projecting from the outer edges of the top and bottom walls to a position in iront of said outlet.

3, A car ventilator comprising a shell having top and bottom walls, side walls convergingfrom the outer edges or said to and hottom walls to provide an outlet, on a screen secured in said outlet, said bottom wall being inclined at said outlet and said screen having openings in its lower edge to permit the escape of cinders which may pass throu h the screen and fall upon said bottom.

4. ii car ventilator comprising a shell having top, front and back walls, a bottom wall 'havin an opening therein, converging side walls orming an outlet, and a double screen supported in said outlet. 5. A car ventilator comprising a shell having top, front and back walls, a bottom wall havin an opening therein, converging side walls mclosing the front portion of said opening and forming an outlet, an inclined door hinged to the shell at the top thereof behind the outlet to close the passage leading thereto, means for 0 rating said door, and a screen in said on et in front of said door.

AUGUST STEGER. 

